preoccupation

详细解释:n. 抢先占据, 先人之见, 入神
【医】 成见, 注意散漫, 心不在焉

英语解释：

名词 preoccupation:

an idea that preoccupies the mind and holds the attentionthe mental state of being preoccupied by something同义词：preoccupancy, absorption, engrossment